Doubler



May 29, 1928.

w. M. BLECKER DOUBLER 2 Sheets-Shet 1 Original Filed Dec. '7, 1925 BY wanna May 29, 1928.

w. M. BLECKER DOUBLER Original Filed Dec. 7, 19 2 Sheets-Shet 2 Patented May 29, 1928.

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' Originaiapplication filed December7,

This invention rclates'to apparatus for use in the continuous rolling of sheet bars, light plates or slabs into sheets oi desircd'gauge, and the object of the improvement is to provide a doubling apparatus for use for example in carrying out a continuous sheet rolling method in which sheet bars, light plates or slabs are heated and-passed continuously through-a series of roughing mills being matched or piled once twice or more depending uponthe gauge of sheets to be rolled, the pieces being then reheated and automati cally doubled it sheets under 22 gauge are desired, and then continuously passed through finishing rolls through-side and end shearing apparatus, then through a continuous annealing furnace and-finally through sheet levelling and opening mechanism and onto a cooling table; each succeeding stand of rolls throughout the train being operated at a higher-speed than the preceding rolls-in order to accommodate the increasing length of the bars or sheets as they are 'pa'ssed through each stand.

An embodiment of the invention is illus trated in the accompanying drawings, in which:

Figure 1 is a plan sectional view of the doubling apparatus, continuous open sheet furnace, the first stand oi finishing mills and the first stand of edge straightening rolls for rolling sheets lighter than 22 gauge;

Fig. 2, the same; I

F 3, a plan sectional view (if-the remaining alternate finishing mills and edge straightening rolls which succeed those shown in Fig. 2

Fig. 4, vertical longitudinalview of the same;

Fig. 5, an enlarged detached plan View of an improved doubling apparatus similar to the apparatus illustrated in Figs; 1 and 2; and

(3 side-elevationthereof.

Similar numerals refer to similar parts throughout the drawing.

This application is a division of my copending application for improvements in continuous sheet rollingapparatus and method, Serial Number 73,597, filed December 7, 1925. I

In rolling sheets lighter than 22 gauge, a pile of sheets may be, during the process,

a verticallongitudinal section of 1925,Seria.1NOF7 3,597: 'mi'mieaaha this appneafidn fiia Au tsto, 1926. Serial No. 130,539. a

passed through a reheating furnace and after emerging from the furnace placed upon the improved automatic doubler or the-present invention, a pusher t8 or the' likebeing used for the'pulpose' of placing the pileapon the doubler. I K v The improved doubler includes a table-60,

one section -oi:' Which-as indicatedat 51 is lunged at the center as at 52, 21 magnet 553 being carried by each section ofthe table close to. the hinge joint.

AS the pile is place'd-upon the tableit engages a stop-switch '58 *llihfilitOlflfitiCfllly energizes through su table electrical connections themagn'ets holdingthe pile rigid on" the table at points close to the hinge joint; At the same'tim'ea clu'tchC, connecting a suitable motor M- with the rocker shatt 54 iselectroniagneti'cally thrown in, rotating tlns'rocker shattin the directinn of the arrow-shown in Figs. 2+an'd 6; This rocker shaft carriedja rocker arm 55 con "nected bya li1'1 k56, with the hinged section-51 of the doublerxtablethrowingthis hinged section into the position shown in dotted lines iii-"Figs. 2 and 6, and sinceth'e pile is held by the magnets, only-at points close to th'e hinge the'free ends ofthe sheets inthe pile are permitted to open" as the pile is doubled, forming a pack as illustrated at 57 in Figs- 2: and 6.

When-the hinged section of'th'e doubler table reachesthe position shown infd otte'd lines'in Fig. 2-it' engages a stop 53 Whih mechanically changes the clutch connection returning-the hinged section to thenornial position and at the same tim'e' the' magnets are-automatically deeiiergized by the switch spreaders 53 and the pusher 48 operatedto a roller table 58-1531 which it conveyed through a continuous open sh'e'etfurnace '59 and thencetot'h'e 'firs't stand 60of a se'cond' series of finishingrol'ls. The upper roll'61 of this stand is'preferably of larger'diaimeter than the lower roll in order to flatten the forward end of the heated pack as it is well known that there is a tendency for this forward end of the pack to bend or curve upward as it emerges from the furnace. The pack is then conveyed through a series of alternate edge straightening rolls 62 and finishing rolls 63, each edge straightening roll being considerably smaller in diameter move the pack from "the doubler and upon 1 than the finishing rolls and being smaller at its center than at its ends so that the edges of the pack will be rolled down Without striking the center oi the pack and tak ing out the form of the precedingmolls, thus'placmg the pack in the next stand of finishing rolls as near to its originalcondi ,tion as possibleand without breaking the pack open.

I claim: 1. A doubler including a table composed of'two hingedly connected sections for receiving a pile of sheets, means for holding the, pile adj acent, to the hinge joint, and ;means actuated by the sheet pile tor swinging the sections together to fold thepile into Ti -P k, j i a 2;, Adoubler including a, table composed of two hingedly connected sections for re ceiving aipileoil sheets, magnets adjacent to the hinge joint torholdmg the pile, and

means actuated by the sheet pile for swinging the sections together to told the pile mto 3. A doubler including a table composed o'l twohingedly connected sectionstor receiving a pile of sheets, means for holding the pile adjacent the hinge, joint, means ac- ,tuated by the sheet pile tor swinging the sections together to told the pile into a'pack, and means automatically controlling the veration of the holdin means.

, l. lAdoubler including a table composed at two hingedly connected sections t'or receiving a pile of sheets,-means actuated by the slieetpile l oryholding the pile adjacent the hinge joint, means torswinging the sections together to toldthe pile into a pack, and means automatically controlling the operation. "of the swinging means.

5. A doubler including a table composed of .tWo hingedly connected sections for re-.

ceiving a pile of sheets, means for holding the pile adjacent the hinge joint,means for swingingthe sections together to toldthe pile into a pack, and means actuated by the sheet pile for automatically controlling the [operatlon of the holding and swinging 7 ,means, i

ottwo hingedly connected sections tor re- 6, A doubler including atable composed ceiving a pile Lot sheets,means for holding the pile adjacent the hinge joint, means for swinging the sections together to fold the pileintoa pack, and means actuated by the sheet pile for automatically controlling the operation of the holding means.

7. A doubler including a table composed ol two lnngedly connected SGOlJlOIlS for receiving a pile of sheets, means for holding the pile adjacent the hinge joint, means for swinging thesectlons together to fold the pile into a pack, and means actuated by the" sheet pile for automatically controlling the operation of the swinging means.-

8. A doublerincluding a table composed oftwo hingedly connected sections for receiving a pile of sheets, electromagnetic means adjacent to thehinge joint for bold ing the pile, and means actuated by the sheet pile for swinging the sections together to told the pile into a pack,

9. A doubler including a table composed ot two hingedly connected sections for receiving a pile of sheets, electromagnetic means adjacent to the hinge joint for hold-- ing the pile, and means actuated by the sheet pile :tor autoniatically controlling the operation of the holding means.

10. A doubler including a table composed ojtttwo'hingedly connectedsections for re ceiving a pile of sheets, electromagnetic means for holding the pile adjacent the hinge joint, means for swinging the sections together to told the pile into a pack, and

means actuated by the sheetpile for automatically controlling the operation of the holding and swinging means.

11. A doublerincluding a table composed of two hingedly connected sections for receiving a pile of sheets, electromagnetic means for holding the pile adjacent the means-.actuated by the sheet pile for automatically controlling the operation of the swinging means.

In testimony that I claim the above, I

have hereunto subscribedmy name.

WILLIAM M. BLECKER. Y 

